Flora index
Fauna index
guide to the mangroves of singapore
Peter K L Ng and N Sivasothi (editors)
Leaf oyster
Isognomon ephippium
Family Isognomonidae
view of oysters among tree roots
Mangrove forest floor
covered with living
Isognomon shells

close-up of oyster shell grooves
Multiple ligament grooves
of Isognomon ephippium
Each groove is
about 1 mm wide
magnified close-up of byssus threads
Byssus threads
of Isognomon ephippium

close-up of oysters on tree roots
Isognomon ephippium
(shell length about 6 cm)
attached to the prop roots
of Rhipzophora
These flat, purplish-brown shells are found in clusters attached to rocks, mangrove tree roots and walls of monsoon drains using their byssal threads.

They differ from other bivalves in having multiple ligamental grooves, a unique feature of this family.

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What is mangrove?

The Ecosystem


Indirect uses
Potential uses

About Mangroves
in Singapore

Mangroves to visit
From "A Guide to Mangroves of Singapore", Peter K. L. Ng and N. Sivasothi (editors)
Volume 1: The Ecosystem and Plant Diversity and Volume 2: Animal Diversity
Authors: Kelvin K. P. Lim, Dennis H. Murphy, T. Morgany, N. Sivasothi, Peter K. L. Ng,
B. C. Soong, Hugh T. W. Tan, K. S. Tan & T. K. Tan
BP Guide to Nature Series published by the Singapore Science Centre, sponsored by British Petroleum
2001 Raffles Museum of Biodiversity Research, The National University of Singapore & The Singapore Science Centre